Mixing device



1,446,335. L. W. CHAPMAN.

MIXING DEVICE.

FILED JUNEZI, I921.

gvwenhn Patented Feb. 26, 1923.

LEMUEL W. CHAPMAN 0F INDIANAPOLIS, INDIANA.

MIXING nnvrcn.

Application filed June 21,

To all whom it may concern Be it known that I, LEMUEL XV. CHAP- MAN, acitizen of the United States, residing at Indianapolis, in the county ofMarion and State of Indiana, have invented certain new and usefulImprovements in a Mixing Device; and I do hereby declare the followingto be a full, clear, and exact ClQSCIlP- tion of the invention, such aswill enable others skilled in the art to which it appertains to make anduse the same.

In the operation of internal combustion engines utilizing liquid fuel acarburetor is employed for vaporizing the fuel and mixing the same withthe air passing therethrough. l

It is a matter of common knowledge that all the particles of fuel arenot broken up and v-olatilized and a a result a certain waste occurs andthe engine and valve foul and carbonize.

The present invention provides a device which may be interposed in thehot air pipe or connection between the carburetor and the exhaust pipewhereby to agitate the air and insure a. more thorough mixing of thesame to the end that more mileage may be obtained from a given amount offuel and the engine rendered less liable to foul.

Other objects and advantages will be apparent and suggest themselves asthe nature of the invention is understood.

WVhile the drawings illustrate an embodiment of the invention it is tobe understood that in adapting the same to meet different conditions andrequirements, various changes in the form, proportion andminor detailsof construction may be resorted to without departing from the nature ofthe invention.

Referring to the accompanying drawings forming a part of thespecification,

Figure 1 is an elevation of a device embodying the invention showing thesame applied to a hot air pipe;

Figure 2 is an elevation of the device partly in section, and

Figure 3 is an end view thereof.

Corresponding and like parts are referred to in the followingdescription and designated in the several views of the drawings by likereference characters.

The device comprises a fan 1 which may be of any construction. Aspindle2 receives the fan 1 and is provided at opposite ends with yieldablesupporting means whereby to hold the device in operative po- 1921.Serial No. 479,264

sition. A hub 8 is molded upon each end of the spindle 2 and the fan 1is confined between the hubs 3. Babbitt, type metal, or similarcomposition readily fusible. may be employed in the molding of the hub33. The yieldable supports are molded in thehub 3 and comprise aplurality of spring arms. The supports at the ends of the spindle 2 areof similar or likeformation, each comprising a plurality of springelements grouped about the spindle and secured at their inner ends tothe hub 3. Each of the spring elements'or arms comprises a relativelyhorizontal portion l and opposite extending longitudinal portions 5 and6. These element or arms are preferably formed from spring wire ofsuitable gage and determinate size, each being a counterpart of theother. The parts and 6 are disposed at opposite ends of the part 4 andextend in opposite direction, the parts 5 being molded into the hub 3 atthe time of casting the same. The parts 6 extend outwardly and areadapted to engage frictionally with the inner wall of the pipe or likepart in which the device is placed. The yieldable construction of thesupporting means enables them to readily adapt themselves to thediameter of the pipe, hence the device is practically universal in itsapplication and adaptation. The device when positioned in retained'inplace by frictional engagement of the parts 6 with the inner wall of thepipe or like part receiving the mixer. The fan 1 is caused to rotate bythe current passing through the pipe in which the device is located,thereby thoroughly agitating the mixture and materially assisting inbreaking up the particles and insuring a more homogeneous mixture and agreater mileage from a given amount of fuel with a less liability ofcarbonizing or fouling the engine and cooperating parts.

As shown most clearly in Figure 1 the device is located in the hot airpipe 7 disposed between the exhaust pipe 8 and the carburetor 9. The airdrawn through the pipe 7 when the engine is in operation i thoroughlyagitated by coming in contact with the device, the fan being set inmotionand the blades thereof operating as heaters to insure a combining,unification and expanding of the air preliminary to entering thecarburetor 9 and mixing with and Vaporizing the fuel. The gaseousmixture afthe manifold 10 into the cylinders of the en: gine in a mannerWell understood. The eX- haust from the engine passes off through thepipe 8 and the latter becoming heated warms the air entering; the pipe'7 through the mouth piece 11 thereof which is arranged to embrace aportion of, the exhaust pipe 8 in the usual Way.

Having thus described the invention, What I claimjsz 1. A device of thecharacter specified com; prising a fan a spindle having the fan mountedthereon and spring elements at opposit-e ends of the spindle groupedabout the same and attached at their inner ends thereto.

A. device of the character SPGClfiGflgCODlprising a fan spindlereceiving the fan,

hubs at opposite ends of the spindle and having the fan disposed.therebetween and spring elements grouped about the spindle and securedat their innerends to the hub thereon 3 A device of the characterspecified comprising a fan, a spindle receiving the fan,

hubs cast upon, oppositeends of the spindle and having the fan disposedtherebetween and spring elements grouped about the spin- 7 dle andhaving their inner ends molded in the hubs cast thereon.

In testimony whereof I afiix my signature in presence of two Witnesses.

LEMUEL I. CHAPMAN. Witnesses DAVID E. C AP AN, HAROLD VVAEOI-ITER.

